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EP1856510A1 - Procede et dispositif de balayage optique d'un element textile allonge - Google Patents

Procede et dispositif de balayage optique d'un element textile allonge

Info

Publication number
EP1856510A1
EP1856510A1 EP06700205A EP06700205A EP1856510A1 EP 1856510 A1 EP1856510 A1 EP 1856510A1 EP 06700205 A EP06700205 A EP 06700205A EP 06700205 A EP06700205 A EP 06700205A EP 1856510 A1 EP1856510 A1 EP 1856510A1
Authority
EP
European Patent Office
Prior art keywords
light
spectral range
textile material
spectral
optical scanning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06700205A
Other languages
German (de)
English (en)
Inventor
Philipp Ott
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Uster Technologies AG
Original Assignee
Uster Technologies AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Uster Technologies AG filed Critical Uster Technologies AG
Publication of EP1856510A1 publication Critical patent/EP1856510A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/8914—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined
    • G01N21/8915—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined non-woven textile material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/8806—Specially adapted optical and illumination features
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/36—Textiles
    • G01N33/365—Filiform textiles, e.g. yarns
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
    • G01N2021/3181—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths using LEDs
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/8806—Specially adapted optical and illumination features
    • G01N2021/8812—Diffuse illumination, e.g. "sky"
    • G01N2021/8819—Diffuse illumination, e.g. "sky" by using retroreflecting screen
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/94—Investigating contamination, e.g. dust
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/952—Inspecting the exterior surface of cylindrical bodies or wires

Definitions

  • Foreign substances are highly undesirable in yarns such as cotton or wool yarns. They can change the mechanical properties of the yarn and cause thread breaks during weaving. When dyeing, they take on a different color than the rest of the yarn and stand out in the finished fabric, which leads to a reduction in quality.
  • An example of such contaminants are residues of polypropylene films that are used for packaging raw cotton. Devices for the optical detection of such contaminants are known and are preferably used in combination with yarn cleaners which have defects such as Remove thick or thin spots or dirt from the yarn.
  • Direction of the detector is reflected and / or scattered.
  • the optical scanning is thus of a "bright” background, the other of a “dark” '.
  • the invention thus combines the advantages of measurement with a light (or white) and dark (or black) background.
  • FIG. 3 also shows a wavelength-dependent reflectivity of a background of the device according to the invention.
  • the background influences the measurements because, in addition to the light interacting with the textile material, light that is reflected and / or scattered by the background is also always detected.
  • the background now reflects in a background spectral region 64, the intersection of which is not empty with the first spectral region 61 and the intersection of which is essentially empty with the second spectral region 62.
  • the background 4 is again green.
  • This embodiment has the advantage over that of FIG. 7 that both light receivers 31, 32 continuously receive the respective light 51, 52 and can output their output signals; Modulation of the scanning light is not necessary.
  • a disadvantage of this embodiment is that the two light receivers 31, 32 are directed to different locations along the circumference of the textile material 9.
  • the embodiment of FIG. 7 or FIG. 8 will be preferred, wherein the device 1 according to the invention should in each case be structurally optimized for the intended application.

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Immunology (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Textile Engineering (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

L'invention concerne un dispositif (1) de balayage optique d'un fil (9), comportant de premiers éléments de balayage optique (21, 3) destinés au balayage optique du fil (9) dans une premier domaine spectral, et de deuxièmes éléments de balayage optique (22, 3) destinés au balayage optique du fil (9) dans une autre domaine spectral différent du premier. Les premiers et deuxièmes éléments de balayage optique (21, 22, 3) sont disposés devant un arrière-plan (4) réfléchissant dans le premier domaine spectral, non dans le deuxième. L'invention permet ainsi de combiner les avantages de la mesure avec arrière-plan clair et sombre (4). Ceci permet d'identifier efficacement des corps étrangers clairs et sombres dans le fil (9) et de différencier divers corps étrangers.
EP06700205A 2005-02-24 2006-01-18 Procede et dispositif de balayage optique d'un element textile allonge Withdrawn EP1856510A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3312005 2005-02-24
PCT/CH2006/000039 WO2006089438A1 (fr) 2005-02-24 2006-01-18 Procede et dispositif de balayage optique d'un element textile allonge

Publications (1)

Publication Number Publication Date
EP1856510A1 true EP1856510A1 (fr) 2007-11-21

Family

ID=34974752

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06700205A Withdrawn EP1856510A1 (fr) 2005-02-24 2006-01-18 Procede et dispositif de balayage optique d'un element textile allonge

Country Status (4)

Country Link
EP (1) EP1856510A1 (fr)
JP (1) JP2008537591A (fr)
CN (1) CN101120244A (fr)
WO (1) WO2006089438A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5318384B2 (ja) * 2007-08-08 2013-10-16 矢崎エナジーシステム株式会社 電線表面の画像検査装置
KR101164753B1 (ko) 2008-04-18 2012-07-12 미츠비시 레이온 가부시키가이샤 탄소 섬유 스레드의 제조 장치 및 제조 방법
JP2013545089A (ja) * 2010-10-19 2013-12-19 ウステル・テヒノロジーズ・アクチエンゲゼルシヤフト ヤーンクリヤラ及び糸欠点を除去する方法
CN102830123B (zh) * 2012-08-16 2014-07-02 北京科技大学 一种金属板带表面微小缺陷的在线检测方法
CN109709098A (zh) * 2018-12-21 2019-05-03 季华实验室 一种视觉识别布料瑕疵的控制系统
CH716607A1 (de) * 2019-09-17 2021-03-31 Uster Technologies Ag Verfahren und Vorrichtung zur Überwachung von Fremdmaterialien in einem Textilfasergebilde.
CN113458015A (zh) * 2021-07-28 2021-10-01 合肥太易检测技术有限公司 一种复合红外色选光学系统及色选机
JP7545176B1 (ja) 2023-09-27 2024-09-04 株式会社メック 欠陥検査装置及び欠陥検査方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2592039A (en) * 1946-09-09 1952-04-08 Laetsch Jean Paul Apparatus for examining threads visually for defects
CH674379A5 (fr) * 1989-05-26 1990-05-31 Hans Juergen Scheinhuette
CH683293A5 (de) * 1991-12-20 1994-02-15 Peyer Ag Siegfried Fremdfasererkennung in Garnen.
EP0652432A1 (fr) * 1993-11-04 1995-05-10 BARCO nv/Automation Dispositif de détection des impuretés, notamment des fibres étrangères dans des textiles en mouvement
AUPM533094A0 (en) * 1994-04-27 1994-05-19 Commonwealth Scientific And Industrial Research Organisation Methods and apparatus for determining a first parameter(s) of an object
EP1188043A1 (fr) * 1999-05-29 2002-03-20 Zellweger Luwa Ag Procede et dispositif de detection de corps etrangers dans un materiau renforce par des fibres et a deplacement longitudinal

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006089438A1 *

Also Published As

Publication number Publication date
WO2006089438A1 (fr) 2006-08-31
JP2008537591A (ja) 2008-09-18
CN101120244A (zh) 2008-02-06

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Owner name: USTER TECHNOLOGIES AG